mozilla-central/toolkit/components/extensions/test/xpcshell/test_ext_dnr_across_redirects.js (file symbol)

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Test Info: Warnings

/* Any copyright is dedicated to the Public Domain.
"use strict";
const server = createHttpServer({ hosts: ["example.com", "redir"] });
server.registerPathHandler("/redirect_from_303", (req, res) => {
res.setStatusLine(req.httpVersion, 303, "See Other");
res.setHeader("Location", "/redirect_to?303");
});
server.registerPathHandler("/redirect_from_307", (req, res) => {
res.setStatusLine(req.httpVersion, 307, "Temporary Redirect");
res.setHeader("Location", "/redirect_to?307");
});
server.registerPathHandler("/redirect_to", (req, res) => {
info(`Received request: ${req.method} ${req.url}`);
// Return the method as seen by the server, so that the test can confirm that
// the method as seen by the server matches the method as seen by DNR.
res.setHeader("outcome", "server-" + req.method);
});
add_task(async function test_match_across_redirects() {
let extension = ExtensionTestUtils.loadExtension({
manifest: {
host_permissions: ["<all_urls>"],
permissions: ["declarativeNetRequestWithHostAccess"],
},
async background() {
await browser.declarativeNetRequest.updateSessionRules({
addRules: [
{
id: 1,
condition: {
requestMethods: ["get", "post"],
urlFilter: "/redirect_from",
},
action: {
type: "modifyHeaders",
responseHeaders: [
// Because the request is redirected, the fetch() caller should
// not observe this header:
{ operation: "append", header: "outcome", value: "pre_redir" },
],
},
},
{
id: 2,
// HTTP 302 and 303 should convert redirects to GET:
condition: {
requestMethods: ["get"],
urlFilter: "/redirect_to",
},
action: {
type: "modifyHeaders",
responseHeaders: [
{ operation: "append", header: "outcome", value: "match_get" },
],
},
},
{
// HTTP 307 should preserve HTTP method.
id: 3,
condition: {
requestMethods: ["post"],
urlFilter: "/redirect_to",
},
action: {
type: "modifyHeaders",
responseHeaders: [
{ operation: "append", header: "outcome", value: "match_post" },
],
},
},
],
});
async function getOutcome(method, path) {
const url = `http://example.com${path}`;
const { headers } = await fetch(url, { method });
return headers.get("outcome");
}
// Regression test for bug 1909081:
browser.test.assertEq(
"server-GET, match_get",
await getOutcome("POST", "/redirect_from_303"),
"HTTP 303 changes POST to GET, and DNR should match GET"
);
browser.test.assertEq(
"server-POST, match_post",
await getOutcome("POST", "/redirect_from_307"),
"HTTP 307 keeps POST as POST, and DNR should match POST"
);
browser.test.sendMessage("done");
},
});
await extension.startup();
await extension.awaitMessage("done");
await extension.unload();
});